>> the toyota sports desk, brought to you by your local toyota dealers. moving you forward. the nats are in the middle of a race. paradee leading the are 34 gamess below 500 and struggling the nationals were aating them by a -- like drum. let me take you downtown. one out and, uh oh. goodbye baseball. hello, spanking. no real punches were thrown. the cubs frustration poured out. he went over and challenged them. cubs --

the dance started all over again. nats did not want to get anybody suspended. there was not much to it. it made the game longer and it kept the blowout interesting. the fans loved it. the nats when it. 5-2. get that the eighth, stuff out of here. a tie-breaking home run. orioles beat new york 10-6. those two teams are tied at the top of the american league. tomorrow, rehearsed the script, and then fly through your lens saturday. the redskins are one of the biggest underdogs. despite coach suspended for the .eason >> you can have perfect

, that makes him dangerous and makes our whole attack very dangerous. how about this, florida state by more than 70 against nevada state this saturday. >> what? >> the biggest margin of victory georgia techll was 200-0.es whe >> my goodness. can you do that to a neighbor? >> exactly.

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tonight on "nightline," four more years. it was president obama's big night at the highly anticipated finale of the democratic national convention, but did he convince voters that the best is yet to come? >> his secret weapon, she introduced the president tonight and two nights ago, she brought down the house here. michele obama looks back and forward with diane sawyer and talked about how her kids reacted to her big speech.

and the thin doctor. he works with jay-z and oprah, now he's spinning tunes at this convention, like "signed sealed delivered." we hang with him to find out how do democrats get down. >> good evening, i'm terry moran here in charlotte, north carolina, where the 2012 democratic convention has entered the history books with a speech by president barack obama. a stirring speech for the people here in the hall. he launched a vigorous defense of his record, several negative attacks against mitt romney and he offered the delegates a little bit of that old-time obama religion of hope. all in all, the people who were in this hall, received this

speech, they were elek triified by it. they were explosive at times. you could hear them yearning for his success. the real question is, how does this play outside the hall, in the un country, with you? because the president has significant challenges ahead of him. ♪ they still love him. barack obama may be struggling in the polls and fighting for his political life, but tonight among the democrats gathered here, any doubts or disappointment seemed to disappear. >> madam chairwoman, delegates, i accept your nomination for president of the united states. [ cheers and applause ] >> reporter: still, you couldn't help but think what a difference four years have made. he's so much grayer now, the toll the presidency takes, that youthful aura that still clung to barack obama in 2008, has

been burned away by the searing pressures of power. so he spoke tonight as a man of hard and sometimes bitter experience, of survival. >> i recognize that times have changed since i first spoke to this convention. times have changed and so have i. i'm no longer just a candidate. i'm the president. [ cheers and applause ] >> reporter: this was a political party that will need every once of effort to re-elect president obama. that's why you saw former congresswoman gabby giffords unite this hall in tears and cheers as she recite the pledge of allegiance. >> reporter: and that's why vice president joe biden went all out too. we can now proudly say what you've heard me say the last six

months. osama bin laden is dead and general motors is alive. [ cheers and applause ] >> reporter: the president did something else. he addressed directly the frustrated hopes and mixed feelings about his leadership out across the country. >> now, i won't pretend the path i'm offering is quick or easy. i never have. you didn't elect me to tell you what you wanted to hear. you elected me to tell you the truth. [ applause ] and the truth is, it will take more than a few years for us to solve challenges that have built up over decades. >> reporter: truth and struggle. ♪ >> reporter: a long way, perhaps, from the euphoria of hope and change. this was really the president's biggest challenge tonight, the biggest challenge in his campaign, to overcome the disappointments and the doubts among so many americans who voted for him in 2008. and give them home again.

>> i think they're looking for the combination of that vision, the hope that he offered in '08, but the reality of just how we're going to do it. >> reporter: we chatted with the author of the definitive biography of obama so far. >> what happened with the 2008 voters who were so full of hope? what happened to the hope? >> i think in one sense, obama went into office thinking that he could somehow transform this place. but he didn't really have the experience in washington to understand what it would take to try to bring things together. >> reporter: somewhere it seemed obama stopped driving events and seemed more driven bipartisan cyclones and fierce economic head winds. but that's not supposed to happen to strong presidents. a republican ad mocked his

efforts to explain. >> barack obama's got lots of excuses for the bad economy. >> head winds coming from europe. >> we've had a string of bad luck. >> an earthquake in japan. >> reporter: and in 2008, he promised so much more. >> this was the moment when the rise of the oceans began to slow and our planet began to heal. >> rolling back the bush tax cuts on the top 1 percent. >> as we took a stroll through the delegations today, we heard democrats fire back in the president's defense. >> everyone did expect hope and change and they expected it instantaneously. however, the mess of created over a lengthy period of time. >> it's a partisan fight to the death, this campaign. so obama went negative, early and often, unusually for an incumbent president. >> when governor romney and his friends in congress tell us we can lower our deficits by spending trillions more on new tax breaks for the wealthy, what

did bill clinton call it? you do the arithmetic. i refuse to ask middle-class families to give up their deductions for owning a home or raising their kids just to pay for another millionaire's tax cuts. >> reporter: in the end, it was, once again, that barack obama spoke of. hope in tough times. >> america, i never said this journey would be easy, and i won't promise that now. yes, our path is harder, but it leads to a better place. yes, our road is longer, but we travel it together. we don't turn back. we leave no one behind. we pull each other up. we draw strength from our victories, and we learn from our mistakes. but we keep our eye fixed on the distant horizon, knowing that providence is with us, and that we are surely blessed to be citizens of the greatest nation

on earth. >> reporter: president obama leading the democratic party into the battle into the fall. next up, she brought down the house here a couple nights ago. first lady michele obama back on stage tonight. she sat down with diane sawyer to talk about how their daughters saw her big speech the other night. [ diana ] power was very important to me.

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tonight first lady michele obama had her second big moment up on that stage there as she introduced her husband for his big convention speech. couple of nights after she brought the house down with her own passionate defense of barack obama. but the stamp of approval that meant the most to her is what

her two daughters -- their two daughters thought of her speech as she told abc's diane sawyer. >> and the president of the united states of america, barack obama! >> she was there with her husband for his big moment tonight. ♪ >> michele, i love you so much. a few nights ago, everybody was reminded just what a lucky man i am. [ applause ] >> reporter: her own speech had launched this convention on tuesday and enthralled the convention floor. >> i see the concern in his eyes, and i hear the determination in his voice as he tells me, you won't believe what these folks are going through, michele. it's not right. we've got to keep working to fix this. we've got so much more to do. >> reporter: it was a personal story with a deeply political sub text.

afterwards, a phone call from the white house. >> what did the president and your daughter say to you? >> they called me in the car, and the girls had already gone to bed because he said they were exhausted. it was a late speech, but he said he was so proud. >> and then the fan with the fewest words. 11-year-old sasha. >> the next day i called home, talked to sasha, the youngest, who never compliments me on anything. she said, you know, mom, you gave a really good speech last night. she said, all my friends told me to tell you what a good job you did. >> i was like that's so sweet, honey. >> wow. >> my even-year-o11-year-old, i and run. >> so much of the speech reflecting on her personal life. family. >> we don't look at the moment. we really measure things by how much the girls have grown. >> we can see the physical difference. we can see the height. what's the other most surprising change in them?